EP3124342A2 - Procede de commande d'un ou plusieurs freins d'un vehicule - Google Patents

Procede de commande d'un ou plusieurs freins d'un vehicule Download PDF

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Publication number
EP3124342A2
EP3124342A2 EP16181579.0A EP16181579A EP3124342A2 EP 3124342 A2 EP3124342 A2 EP 3124342A2 EP 16181579 A EP16181579 A EP 16181579A EP 3124342 A2 EP3124342 A2 EP 3124342A2
Authority
EP
European Patent Office
Prior art keywords
braking
brake
brakes
vehicle
energy
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP16181579.0A
Other languages
German (de)
English (en)
Other versions
EP3124342A3 (fr
EP3124342B1 (fr
Inventor
Martin Mederer
Matthew Fry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP3124342A2 publication Critical patent/EP3124342A2/fr
Publication of EP3124342A3 publication Critical patent/EP3124342A3/fr
Application granted granted Critical
Publication of EP3124342B1 publication Critical patent/EP3124342B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1708—Braking or traction control means specially adapted for particular types of vehicles for lorries or tractor-trailer combinations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/172—Determining control parameters used in the regulation, e.g. by calculations involving measured or detected parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/40—Failsafe aspects of brake control systems
    • B60T2270/406—Test-mode; Self-diagnosis

Definitions

  • the invention relates to a method for controlling one or more brakes, in particular disc brakes, a brake system for a vehicle, in particular for a trailer vehicle.
  • Fig. 1 shows a schematic representation of a vehicle braking system for a vehicle with four exemplary here on two axles 5a (front axle, also referred to as VA), 5b (rear axle, also HA) distributed disc brakes 1, 2, 3, 4, each two brake pads 6a, 6b exhibit.
  • the vehicle is preferably in particular a commercial vehicle.
  • the vehicle may also be a powered vehicle, in particular a towing vehicle, or a trailer vehicle.
  • the brake pads 6a, 6b are each pressed during braking against brake discs of the disc brakes 1 - 4, not shown here, to decelerate the vehicle. As a result of the brakes wear the brake pads 6a, 6b and the brake disc.
  • wear sensors 7 on the here four (or more) disc brakes 1-4 each via a connection such as cable 8 or wirelessly to an evaluation and control device. 9 to join. This can - in the prior art and in the invention - be designed as part of a parent, not shown here -aki gleichsus- and information system of the vehicle.
  • DE 101 50 047 A1 It is also known to determine the energy occurring in one or more braking, perform a comparison of this braking energy with a braking energy limit and perform in the case of exceeding this limit with electric motors on the otherwise pneumatically actuated disc brakes an adjusting movement to compensate for the occurred wear.
  • the braking energy is calculated directly from the braking torque and the wheel rotation angle without additional sensors.
  • the wheel rotation angle is preferably determined by means of an ABS system with a pole wheel sensor, which is always present in modern brake systems and therefore does not require any additional equipment.
  • the braking torque in a simple manner from the brake cylinder pressure, in particular a pneumatically operated Brake cylinder, which is also fed to an EBS or ABS control computer or an evaluation and control device.
  • the brake cylinder pressure in particular a pneumatically operated Brake cylinder
  • an EBS or ABS control computer or an evaluation and control device e.g. a pneumatically operated Brake cylinder
  • the wheel angle of rotation is preferably directly over a e.g. for an ABS and / or EBS function of a brake system for brake control anyway required and therefore available speed sensor determined.
  • the speed sensor consists of a pole wheel, which rotates with the hub and a fixed encoder that registers the passing teeth, solenoids, etc. of the flywheel with a voltage pulse. At e.g. 100 teeth per rotor thus corresponds to a pulse a wheel angle of 3.6 °. By summing up these pulses, the evaluation device determines the wheel rotation angle during the braking phase.
  • the converted braking energy is thus determined by simple links of the brake cylinder pressure signal with the number of Radcardimpulse.
  • the formulas given are examples and do not necessarily have to be used for determining the braking energy. They are particularly suitable for disc brakes with electromotive or pneumatic actuation and with a floating, fixed or sliding caliper.
  • the adjusting system comprises on each side of the brake disc at least one of the electromotive adjusting devices.
  • the brake cylinder pressure during braking is usually determined and adjusted from a brake pedal information and a loading information in order to achieve a desired deceleration.
  • the deceleration is the quotient of the braking force and the weight of the vehicle.
  • the energy limit value can be parameterised depending on the brake pad material used
  • the energy input during a current braking and / or during one or more future braking operations is defined - for example within the permitted limits of the ECE R13.
  • Disc brakes in particular pneumatic disc brakes, are preferably used as the brakes used.
  • the invention is, however, in principle also suitable for drum brakes.
  • the energy input can, for example - but this is not mandatory - with in the DE 101 50 047 A1 be determined.
  • step d) the energy input in the current braking and / or in one or more future braking is increased by setting a brake cylinder pressure that is higher than it actually is due to actual or future parameters such as a brake pedal operation, a vehicle speed and a load state of the vehicle for the respective braking would be at least required.
  • step d) the energy input during the current braking and / or one or more future braking actions is raised such that a temperature of at least 150 ° C. or more is applied to the brake linings of the brakes is reached.
  • Fig. 1b shows a vehicle brake system for a vehicle, which has four exemplary on two axles 5a, b distributed disc brakes 1, 2, 3, 4, each having two brake pads 6a, 6b. These brake pads are rubbing during braking to press against a brake disc, not shown here or press.
  • the vehicle may be an access vehicle or a trailer vehicle.
  • the disc brakes are preferably tensioned to carry out braking by means of brake cylinders assigned to them.
  • brake cylinders are subjected to carry out the braking with compressed air.
  • the four disc brakes 1 to 4 each had a wear sensor 7, the output of which is connected to the evaluation device 8, so that there is information about the respective state of wear of the disc brakes 1 to 4 during operation of the vehicle. This is beneficial, but not essential.
  • signals are also transmitted about the angle of rotation of the vehicle wheels (rotational angle sensor 14 on the wheels or in the vicinity of the disc brakes 1-4) and preferably on the braking torque (pressure sensor 16) and preferably information about the duration and / or or distance of the vehicle provided and evaluated.
  • the determination of the braking energy can be done in various ways, so in the manner of the above-described DE 101 50 047 A1 or the DE 199 33 961 A1 , The converted braking energy corresponds essentially to the energy input during braking.
  • Fig. 2 illustrates that on trailer vehicles in most cases a "fixed” load-dependent braking control for all axes is realized.
  • "Fixed” means that depending on the driver's braking request and depending on the currently measured load condition (X-axis) a defined and for these respective specifications fixed or unchangeable brake cylinder pressure is set. The pressure sensor 16 then supplies a constant signal for a braking request. Dynamic changes to this transmission ratio, depending on changing state or input variables are usually not possible.
  • the brake demand signal must be converted into a corresponding deceleration signal or a corresponding braking force as a function of the respective driving state, in particular of the mass of the vehicle.
  • the current driving condition of the vehicle is approximated by a variety of variables, such.
  • the energy input in the brake pads during braking with the electronic control device eg Trailer EBS
  • the electronic control device eg Trailer EBS
  • the energy input of the brake pads is For example, on the brake cylinder pressure and the vehicle speed (wheel speed) or the distance traveled during braking distance dependent).
  • This can be done, for example, by controlling a brake cylinder pressure, which is higher than it would be required as a result of the current parameters for the braking, so for example, higher than the actually after Fig. 2 to be adjusted brake cylinder (chamber) pressure.
  • the brake cylinder pressure required per se is the one which would be set with the evaluation and control device in the light of the respectively present parameters without consideration of the brake energy consideration.
  • the increased brake pressure leads to an increased energy input. Adverse changes in the brake lining friction coefficient can thus be reduced or even completely avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)
  • Braking Arrangements (AREA)
EP16181579.0A 2015-07-29 2016-07-28 Procede de commande d'un ou plusieurs freins d'un vehicule Active EP3124342B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015112363.0A DE102015112363A1 (de) 2015-07-29 2015-07-29 Verfahren zur Ansteuerung einer oder mehrerer Bremsen eines Fahrzeugs

Publications (3)

Publication Number Publication Date
EP3124342A2 true EP3124342A2 (fr) 2017-02-01
EP3124342A3 EP3124342A3 (fr) 2017-05-10
EP3124342B1 EP3124342B1 (fr) 2021-06-02

Family

ID=56555251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16181579.0A Active EP3124342B1 (fr) 2015-07-29 2016-07-28 Procede de commande d'un ou plusieurs freins d'un vehicule

Country Status (2)

Country Link
EP (1) EP3124342B1 (fr)
DE (1) DE102015112363A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109751349A (zh) * 2017-11-03 2019-05-14 通用汽车环球科技运作有限责任公司 自适应地监测制动器衬垫磨损的方法和系统
WO2020038632A1 (fr) * 2018-08-22 2020-02-27 Wabco Gmbh Système de freinage électronique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12612018B2 (en) 2024-05-13 2026-04-28 GM Global Technology Operations LLC Methods and systems for evaluating trailer braking system performance and conditions
DE102024118018A1 (de) * 2024-06-26 2025-12-31 Zf Cv Systems Global Gmbh Fahrzeug und Verfahren zum Betreiben eines Fahrzeugs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0590388B1 (fr) 1992-09-14 1997-12-10 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Véhicule avec un ordinateur pour signaux de mesure en provenance d'une région des roues
DE19933396A1 (de) 1998-07-21 2000-01-27 Sai Automotive Sommer Ind Nant Vorrichtung zum Schutz unterer Körperglieder von Fahrern und Beifahrern auf Vordersitzen von Kraftfahrzeugen
DE19933961A1 (de) 1999-07-20 2000-09-07 Knorr Bremse Systeme Verfahren zur Überwachung des Funktionszustandes und des Verschleißes von Bremsvorrichtungen und Vorrichtung hierzu
DE10150047A1 (de) 2001-10-10 2003-06-26 Knorr Bremse Systeme Steuerungsverfahren für Scheibenbremsen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8260514B2 (en) * 2004-09-24 2012-09-04 Continental Teves Ag & Co. Ohg Method for supporting a brake system in case of reduced effectiveness

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0590388B1 (fr) 1992-09-14 1997-12-10 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Véhicule avec un ordinateur pour signaux de mesure en provenance d'une région des roues
DE19933396A1 (de) 1998-07-21 2000-01-27 Sai Automotive Sommer Ind Nant Vorrichtung zum Schutz unterer Körperglieder von Fahrern und Beifahrern auf Vordersitzen von Kraftfahrzeugen
DE19933961A1 (de) 1999-07-20 2000-09-07 Knorr Bremse Systeme Verfahren zur Überwachung des Funktionszustandes und des Verschleißes von Bremsvorrichtungen und Vorrichtung hierzu
DE10150047A1 (de) 2001-10-10 2003-06-26 Knorr Bremse Systeme Steuerungsverfahren für Scheibenbremsen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109751349A (zh) * 2017-11-03 2019-05-14 通用汽车环球科技运作有限责任公司 自适应地监测制动器衬垫磨损的方法和系统
WO2020038632A1 (fr) * 2018-08-22 2020-02-27 Wabco Gmbh Système de freinage électronique
CN112533807A (zh) * 2018-08-22 2021-03-19 威伯科有限公司 电子制动系统
CN112533807B (zh) * 2018-08-22 2023-02-17 威伯科有限公司 电子制动系统
EP3840994B1 (fr) 2018-08-22 2023-04-12 ZF CV Systems Europe BV Système de freinage électonique

Also Published As

Publication number Publication date
EP3124342A3 (fr) 2017-05-10
EP3124342B1 (fr) 2021-06-02
DE102015112363A1 (de) 2017-02-02

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